Shuttle



W. A. GRAF SHUTTLE Aug. 22, 1933.

Filed Feb. 18, 1952 INVENTOR,

Patented Aug. 22, 1933 warren STATES PA EN 'OFFICE;

SHUTTLE William A. Graf, Paterson, N. J. Application February 18, 1932. Serial No. 593,704

3 Claims. (01. Isa-20s) Loom shuttles of thetype in which the spindle is pivoted so as to be elevated for replacing the spent weft package by a fresh one usually have three or four pins penetrating the shuttle body 5 transversely, one for the pivotand another to form a stop for the spindle and one or two more to support the spring by which the spindle is held depressed or elevated. Occasionally one of these pins will work out, in which caseit pro- 0 duces a smash, usually involving considerable damage to the warp. The pins, moreover, are frequently the cause of the shuttle body splitting. The present invention has among its objects, hereinafter to be specified or apparent to those skilled in the art, the principal one of eliminating thesepins.

In the drawing, Figjl is a plan of a shuttle embodying the invention;

section of a fragment of the shuttle shown in Fig. 1, a certain screw being showndetached;

Fig. 3 is a similar view showing saidscrew in place and the spindle dotted in elevated position; r i

Figs. 4 and 5 are sections on lines 4 -4 and 5'5, Figs. 1 and 2; respectively, the spindle, spring and screw being removed in Fig. 4; and

Fig. 6 shows the blank from which the spindle mounting is formed. r

The shuttle body 1 has the usual cavity 2 for the wound package (only the core 3-here a quill-of which appears, in dotted outline, in Fig, 1). At one end this cavity has an extension 4 which maybe open top and bottom and the sides of which are grooved at 5 (Fig.4) to form a mortise and theouter end of which is formed with an incline 6 above which a pocket or chamber 7, reaching toward the adjoining end of the shuttle, is formed in said body so as to leave a wall or web 7d of the body overlying the pocket, said wall having an aperture 8.

The mounting for the spindle is formed from I the blank shown in Fig. 6 as follows: The two to parallel the oblique end of one of the wings,

and then bent outwardly parallel with said bottom, thereby producing a tongue 12 on the mounting, which tongue has a hole 1.2a. When the shuttle is to receive a quill, as 3, having-a 5;head 3a, the sides of the wings may be formed with the hook-like clips 9a to engage the head Fig. 2 is alongit-udinal substantially central tohold the quill against longitudinal displacement in the spindle when depressed. As shown in Fig. 3, one side wall of the mounting is cut away at the end thereof adjoining the portion 11a of the extension 11, as at 11b.

The mounting is introduced into the mortise 5 by first entering it into the cavity 2 of the shuttle and then shifting it endwise into the mortise until its inclined bent-up portion or wall Ila-abuts the incline 6, leaving its tongue 12 in the pocket 7.

' The spindle 13 has its butt 13a formed with flat sides and so as to snugly fit betweenthe side walls 9 of the mounting and its butt end is beveled, as at 131), with respect to its bottom face 130, the faces 13c and 13b being adapted to bear respectively against the bottom wall of the mounting and its inclined portion 11a when the spindle is depressed. In itstop surface is formed a transverse groove or bearing 13d Which'is' un dercut at the side thereof remote from thespin' dle. At one side it has a stop pin 14 occupyingthe mentioned notch or recess 11b.

15 is'the spring which is a strip of spring metal somewhat arched (Figs. 2 and 3) and having one end formed intoa curl-shaped lug 15a to form a bearing and its other endprovided with a hole 151). Said spring when positioned in the shuttle body has its lug 15a engaged in the bearing 13d of the spindle butt and its other end entered into the chamber 7 over tongue 12, and in its relaxed state its hole 15b is (preferably) inwardly disalined with respect to the hole 12a of the tongue.

' 16 designates the screw for holding the mounting and spring in place. Having tapped a hole 17 in the shuttle body whichwill aline with; the hole 120. of the tongue when the mounting is fully home in the mortise, said screw (admitted at the hole 8 of web 7a) is passed through the holes in the spring and tongue and into hole 17. The spring should preferably act, by the engagement of its lug 15a in the bearing 13d of the spindle butt, to hold the spindle against the incline 11a of the mounting, and this will be accomplished when the screw is drivenhome if the hole 15b is disalined, as stated, with holes 12a andl'l. When the screw has been entered the hole 8 may be sealed by some suitable plastic 18.

Only four separate parts, in addition to the shuttle body, are involvedthe mounting, spindle, spring and screw. As indicated, the mounting is first entered into the shuttle body, then the spindle into the mounting, then the spring, and finally the screw.

The one e1ementthe screw-serves to retain in place both the mounting and spring, and

through the latter the spindle.

When the spindle is depressed the downward pressure of the spring holds the spindle with the 11a of the mounting, being held thereagainst by the spring as described, so that the spindle is held against endwise displacement as the shuttle reciprocates and the inertia of the spindle asthe shuttle reaches the terminus of its flight to the right in Fig. 3 is not assumed by the spring.

In the raising or lowering of the-spindle the lug 15a serves as a fulcrum which yields upwardly as the angle between the faces 13b and 130 wipes over the bottom of themounting, thereupon re turning to maintain one or the other of said faces (as the case may beragainst said bottom; and in the raised position the spring holds the face 13b squarely against said bottom, or the spindle at a definite angle.

The stop pin 14 is present toengage the stop formed at 11b to limit the spindle-raising motion. This feature is not indispensable and is present mainly to prevent'the weaver in raising the spindle from moving it so far as possibly to unship it.

It is new in this art to provide a weft carrier,

I here formed by the spindle and quill, with two angularly related faces (as 13b, 13c), either, of whichmay bear on a seat (as the bottom of the mounting) in the space of the shuttle structure, and also with a bearing (as 13d) opposite to and arrangedin two converging lines respectively perpendiculartoand passing through said faces, and

provide spring means having a bearing (as 15a) in yielding and articulative engagement with the first bearing and holding the carrier againstsaid seat, whereby'the carrier is pivotallymovable to bring one or the other of its faces against said seat and will then be releasably held in one or the other of two positions.

,It is also new to provide in the space of said structure a seat (asthe bottom of themoimti'ng) extending, and an abutment (here afforded by 11a) near the seat facing, lengthwise of said structure, the weft carrier bearing against the seat and alsoagainst the abutment and provide spring means (as 15) having a bearing in yielding and articulative engagement with the carrier and pressing the latter against both said seat and the abutment.

It willbe noted that the two clips 9a together form a generally conical space which converges downwardly, being a little wider at the top than the diameter of the head of the clip to be received by the clips. Sometimes the quill head will be offset laterally from its proper or centralized position in respect to the space between the clips, and where the clips are of the ordinary form (not forming a conical space as described) one or the other of them is likely to cause chipping away of the quill head. By the present construction this is avoided and, further, if the quill has not been forced fully home on the spindle the forward sloping inner surfaces of the clips will draw the quill fully home when the spindle is depressed.

Having thus fully described my invention what I claim is:

1. In a shuttle, the combination of the fixed shuttle structure having a'space therein for receiving a weft-package carrier and .a seat within said space, a weft-package carrier having two angularly related faces either of which may bear on saidseat and also having a bearing whose axis is opposite to and arranged .intwo converging lines respectively perpendicular to and passing through said faces, and spring means secured to saidstructure and having a bearing in yielding and ,articulative engagement with the first bearing and holding the carrier against the seat.

2. In a shuttle, the combination of the fixed shuttle structure having a space therein for receiving a weft-package carrier and a seatwithin said space, a weft-package carrier having two obtuse-angularly related faces either of'which may bear on said seat and also having a bearing whose axis is opposite to and arranged in two perpendicular lines respectively perpendicular to and passing through said faces, and spring means hook-shaped portions arranged with their con cave sides facing each other, and a spindle for the quill arranged between the members and movable into and out of the cavity, said portions of the members together forming a downwardly generally conical space to receive the head of the quill when the same and the spindle are housed in the cavity.

A. GRAF. 

